16261263 has 8 divisors (see below), whose sum is σ = 24090800. Its totient is φ = 10840824.

The previous prime is 16261247. The next prime is 16261307. The reversal of 16261263 is 36216261.

It is not a de Polignac number, because 16261263 - 2⁴ = 16261247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 602269 = 16261263 / (1 + 6 + 2 + 6 + 1 + 2 + 6 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16261243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301108 + ... + 301161.

It is an arithmetic number, because the mean of its divisors is an integer number (3011350).

Almost surely, 2^16261263 is an apocalyptic number.

16261263 is a deficient number, since it is larger than the sum of its proper divisors (7829537).

16261263 is an equidigital number, since it uses as much as digits as its factorization.

16261263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602278 (or 602272 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 16261263 is about 4032.5256353804. The cubic root of 16261263 is about 253.3483564883.

It can be divided in two parts, 162 and 61263, that added together give a triangular number (61425 = T₃₅₀).

The spelling of 16261263 in words is "sixteen million, two hundred sixty-one thousand, two hundred sixty-three".